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<title>GNU Binary Utilities: elfedit</title>
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<a name="elfedit"></a>
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<div class="header">
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<p>
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Next: <a href="Common-Options.html#Common-Options" accesskey="n" rel="next">Common Options</a>, Previous: <a href="readelf.html#readelf" accesskey="p" rel="prev">readelf</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Binutils-Index.html#Binutils-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
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<a name="elfedit-1"></a>
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<h2 class="chapter">16 elfedit</h2>
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<a name="index-Update-ELF-header"></a>
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<a name="index-elfedit"></a>
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<div class="smallexample">
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<pre class="smallexample">elfedit [<samp>--input-mach=</samp><var>machine</var>]
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[<samp>--input-type=</samp><var>type</var>]
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[<samp>--input-osabi=</samp><var>osabi</var>]
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<samp>--output-mach=</samp><var>machine</var>
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<samp>--output-type=</samp><var>type</var>
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<samp>--output-osabi=</samp><var>osabi</var>
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[<samp>-v</samp>|<samp>--version</samp>]
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[<samp>-h</samp>|<samp>--help</samp>]
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<var>elffile</var>…
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</pre></div>
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<p><code>elfedit</code> updates the ELF header of ELF files which have
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the matching ELF machine and file types. The options control how and
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which fields in the ELF header should be updated.
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</p>
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<p><var>elffile</var>… are the ELF files to be updated. 32-bit and
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64-bit ELF files are supported, as are archives containing ELF files.
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</p>
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<p>The long and short forms of options, shown here as alternatives, are
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equivalent. At least one of the <samp>--output-mach</samp>,
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<samp>--output-type</samp> and <samp>--output-osabi</samp> options must be given.
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</p>
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<dl compact="compact">
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<dt><code>--input-mach=<var>machine</var></code></dt>
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<dd><p>Set the matching input ELF machine type to <var>machine</var>. If
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<samp>--input-mach</samp> isn’t specified, it will match any ELF
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machine types.
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</p>
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<p>The supported ELF machine types are, <var>i386</var>, <var>IAMCU</var>, <var>L1OM</var>,
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<var>K1OM</var> and <var>x86-64</var>.
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</p>
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</dd>
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<dt><code>--output-mach=<var>machine</var></code></dt>
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<dd><p>Change the ELF machine type in the ELF header to <var>machine</var>. The
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supported ELF machine types are the same as <samp>--input-mach</samp>.
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</p>
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</dd>
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<dt><code>--input-type=<var>type</var></code></dt>
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<dd><p>Set the matching input ELF file type to <var>type</var>. If
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<samp>--input-type</samp> isn’t specified, it will match any ELF file types.
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</p>
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<p>The supported ELF file types are, <var>rel</var>, <var>exec</var> and <var>dyn</var>.
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</p>
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</dd>
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<dt><code>--output-type=<var>type</var></code></dt>
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<dd><p>Change the ELF file type in the ELF header to <var>type</var>. The
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supported ELF types are the same as <samp>--input-type</samp>.
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</p>
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</dd>
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<dt><code>--input-osabi=<var>osabi</var></code></dt>
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<dd><p>Set the matching input ELF file OSABI to <var>osabi</var>. If
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<samp>--input-osabi</samp> isn’t specified, it will match any ELF OSABIs.
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</p>
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<p>The supported ELF OSABIs are, <var>none</var>, <var>HPUX</var>, <var>NetBSD</var>,
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<var>GNU</var>, <var>Linux</var> (alias for <var>GNU</var>),
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<var>Solaris</var>, <var>AIX</var>, <var>Irix</var>,
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<var>FreeBSD</var>, <var>TRU64</var>, <var>Modesto</var>, <var>OpenBSD</var>, <var>OpenVMS</var>,
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<var>NSK</var>, <var>AROS</var> and <var>FenixOS</var>.
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</p>
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</dd>
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<dt><code>--output-osabi=<var>osabi</var></code></dt>
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<dd><p>Change the ELF OSABI in the ELF header to <var>osabi</var>. The
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supported ELF OSABI are the same as <samp>--input-osabi</samp>.
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</p>
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</dd>
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<dt><code>-v</code></dt>
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<dt><code>--version</code></dt>
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<dd><p>Display the version number of <code>elfedit</code>.
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</p>
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</dd>
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<dt><code>-h</code></dt>
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<dt><code>--help</code></dt>
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<dd><p>Display the command line options understood by <code>elfedit</code>.
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</p>
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</dd>
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</dl>
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<p>
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Next: <a href="Common-Options.html#Common-Options" accesskey="n" rel="next">Common Options</a>, Previous: <a href="readelf.html#readelf" accesskey="p" rel="prev">readelf</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Binutils-Index.html#Binutils-Index" title="Index" rel="index">Index</a>]</p>
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